// Copyright 2020 Douyu
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package core

import (
	"context"
	"github.com/cenkalti/backoff"
	"time"

	"github.com/douyu/juno-agent/pkg/structs"
	"github.com/douyu/jupiter/pkg/util/xnet"
)

var (
	dialer = xnet.Dial
	now    = time.Now
)

func ping(ctx context.Context, node *structs.ServiceNode) error {
	bo := backoff.NewExponentialBackOff()
	bo.InitialInterval = 1 * time.Second
	bo.MaxInterval = 10 * time.Second
	bo.MaxElapsedTime = 0

	return backoff.Retry(func() error {
		return dialer(node.Address(), time.Second*1)
	}, bo)
}
